<template>
  <div id="app">
    <h2>测试题</h2>
    <subject v-for="(result, index) in list" :key="index" :index="index" 
    @result="resultFn"  
     ></subject>
    <div>
      <flag v-for="(result, index) in list" :key="index" :result = "result" :index ="index"></flag>
    </div>
  </div>
</template>

<script>
import Subject from "./components/Subject"
import Flag from "./components/Flag"
export default {
  data () {
    return {
      list:["未完成","未完成","未完成","未完成","未完成"]
    }
  },
  methods:{
    resultFn(resultStr , index ){
      this.$set(this.list ,index ,resultStr)
    }
  },
  // 组件名
components:{
  Subject,
  Flag
},
};
</script>

<style>
body {
  background-color: #eee;
}

#app {
  background-color: #fff;
  width: 500px;
  margin: 50px auto;
  box-shadow: 3px 3px 3px rgba(0, 0, 0, 0.5);
  padding: 2em;
}
</style>